Supersaurus was a large sauropod that lived in North America during the Upper Jurassic epoch. It belonged to the family of Diplodocids and were famous for their very long and thin necks and tails. Even within its family, Supersaurus was very large in size. It is estimated that Supersaurus had a total length of 34 meters and weighted about 35.000 kg! Its neck alone could grow up to 15 meters in length! Supersaurus was a herbivore and fed on leaves, which its sheared from branches.
Supersaurus vivianae is the only known species within its genus. Fossils have been found in Colorado and Wyoming in the USA. The most complete skeleton of Supersaurus is known as Jimbo and, combined with previous findings, a total of about 50% of the complete skeleton of Supersaurus is known.